/*
 * Licensed this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 * AUTHOR: Sebastian Ritter
 */
using System;
using System.Collections.Generic;
using System.Text;

namespace org.boapi.finance {
  /// <summary>
  /// Visa Card
  /// </summary>
  public sealed class VisaCard : AbstractCreditCard {

    /// <summary>
    /// Is th checknumber correct
    /// </summary>
    /// <returns></returns>
    public override bool isChecknumberCorrect () {
      bool ok = false;       
      if (org.boapi.math.Mathfunctions.isLuhn (this.getValue())) {
        if (this.getValue ().StartsWith ("4")) {
          ok = true;
        }
      }
      return ok;
    }
  }
}
